40 to 50% depletion in ozone layer occurs in the .......... polar region
A
North
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B
South
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C
East
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D
West
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Solution
The correct option is A South 40 to 50% depletion in ozone layer occurs in the South polar region. Ozone is destroyed by collisions with other atoms and molecules. The large scale destruction of the stratospheric ozone first came into focus in 1987 through the experiments in antarctica.